Finding the Third Proportional to 156,799.50 and 210,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,799.50 : 210,685.50 = 210,685.50 : x
2. Step 2: Convert to fraction form
   156,799.50/210,685.50 = 210,685.50/x
3. Step 3: Cross multiply
   156,799.50x = 210,685.50 × 210,685.50
4. Step 4: Simplify right side
   156,799.50x = 44,388,379,910.25
5. Step 5: Solve for x
   x = 44,388,379,910.25/156,799.50
6. Step 6: Final answer
   x = 283,090.06